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(No Model!) 2 Sheets-Sheet 1. J. P. MQELROY. HEATING SYSTEM.

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(No Model.) 2 Sheets-$heet 2. J. F. MGELROY. HEATING SYSTEM.

Patented Apr. 8, 1890.

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UNITED STATES Fries.

PATENT JAMES F. MOELROY, OF ALBANY, N EXV YORK, ASSIGNOR TO THE MOELROY CAR HEATING COMPANY, OF SAME PLACE.

H EATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 425,384, dated April 8, 1890.

Application filed July 5, 1889. Serial No. 316,638. (No model.)

To all whom, it may concern:

Be it known that I, J AMES F. MoELRoY, a citizen of the United States, residing at Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Heating Systems, of

which the following is a specification, reference being had therein to the accompanying drawings. L This invention relates to new and useful improvements in heating systems, especially adapted for heating railway-cars, and of that class of heating systems known as storage heaters. r 5 The invention consists in the peculiar construction of the storage tanks or chambers, whereby they are made more effective, and whereby the heated water in the storagechambers is not easily affected by the movements of the train, all as more fully hereinafter described.

In the drawings which accompany this specification, Figure 1 is a diagram elevation, partly in section, of a heating apparatus embodylng my invention as applied to a railway-car, the radiators on one side only of the car being shown. Fig. 2 is an end elevation of one of the couplings. Fig. 3 is a vertical longitudinal central section thereof. Fig. 4 man end elevation of one of the manifolds. Figs. 5 and 6 are views of side loops of the radiator detached. Fig. 7 is a vertical central longitudinal section through the coupling, to which the steam-pipe is connected. Fig. 8 5 is an enlarged vertical longitudinal section through one section of pipe and two couplings.

A is the main steam-supply pipe or trainpipe connected with the locomotive or other source of steam-supply.

' B is the branch steam-pipe leadinginto the car and controlled bya suitable valve. (Not shown.) D is a radiator extending along the side of the car,consisting of the upper run of pipe E, which dips toward the ends, and the lower run of pipe F, which dips toward the center, the two courses of pipe being connected by suitable return bends or mani folds G.

H is the outlet-pipe for carrying the surplus water out of the car and connected to the lowest point of the system, preferably at the end of the central loop I, the outlet-pipe being controlled by a suitable valve J or the ordinary steam-trap, as may be desired.

All the parts above described are of the known and usual construction except as more fully hereinafter set forth.

In order to provide a reservoir of heated material in the car which will give out its heat for a considerable period of time after the steam is shut off, I have constructed my radiator with a series of storage-chambers in the following manner: The radiator is composed of a number of sections of pipe connected together at. their ends by means of the couplings K, these couplings being provided with suitable screw-threaded apertures L to receive the radiatingpipes and with a dam or partition M centrally thereof provided with an enlarged boss or head N, forming an upper and smaller aperture 0, passing entirely through the couplings, which is suitably screwthreaded at both ends to receive the supplemental distribnting -pipes P. The return bends or manifolds are likewise provided with suitable means to receive in the same manner the radiating-pipes and the steamdistributing pipe.

In Figs. 5 and 6 are shown detached side loops, which it may be desired to use to obtain a greater heating-surface in the car, and in these side loops the return-bends are constructed, the same as before described, with the steam-distributing pipe and the radiat-ing- 8 5 pipe, suitable screw-threaded apertures being made on the sides of the manifolds or couplings, as is necessary.

The pipes P are arranged in the upper part of the'radiating-pipes and are of such length 0 as to leave a space Q between their ends, through which the steam is free to enter the radiating-pipes, filling the entire space between the couplings, as after steam has been turned on a sufficient time it is evident that the water of condensation will accumulate in the radiating-pipes up to the level of the lower side of the steam-distributing pipes, as shown in dotted lines in Fig. 2. As soon as the water of condensation has accumulated to this height in the various partitions, it will flow, the pipes being suitably inclined, into the next lower adjoining storage-chamber, from which it will pass into the next, and so on into the next, and so 011 through the outlet pipe through the valve J, discharging beneath the car.

In starting and stopping the train the natural tendency of the water will be to surge backward and forward and by the arrangement of the dams M and steam-distributing pipes Pthe wateris prevented at such times from passing at great quantities from one storage-chamber into the other, and thus lowering them below the desired level, it being desirable to keep the same amount of water in all parts of the pipes, so that an even distribution of the heat will be effected. The water-level being at all times below the top of the pipes itis evident that should they freeze no damage will arise therefrom.

The coupling a, which receives the steamsupply pipe, I preferably make with a small chamber b, in which the steam enters, a suitable screw-threaded aperture being provided on the side of the coupling.

The essence of the invention consists in constructing a radiator of sect-ions of pipe joined by couplings, these couplings having in them dams provided with screw-threaded apertures, in which are secured steam-distributing pipes extending in both directions and leaving a space between their ends.

Vh at I claim as my invention is 1. In a heating system, the combination of a radiator formed of sections of pipe joined by couplings, of dams in said couplings having an aperture near the top, and steam-distributing pipes extending from said aperture in opposite directions arranged to leave a space between their ends between the couplings, substantially as described.

2. In a heating system, a radiator consisting of sections of pipe connected by couplings, of dams in said couplings having an apertured boss at the top, and steam-distributing pipes secured in said apertures and extending in opposite directions arranged to leave a space between their ends, substan tiallyas described.

In testimony whereof I affix my signature, in

presence of two Witnesses, this 4th day of June, .1889.

JAMES F. MGELRQY. \Vitnesses: Y

EDWIN A. SMITH, JAMES WHITTEMORE. 

